Am 2007-09-15 um 21:35 schrieb Paul Archibald:
> I am a (Mac) C++/Java programmer looking to expand
myself into
> Python. I have been working through some tutorials,
which has made me
> want more, but I am having trouble understanding how to
organize and
> manage the project files that I write or otherwise
obtain.
>
> What I am looking for is how to manage my PDE (Python
Development
> Environment) and project file so that I can write real
programs,
> saving, loading and executing, importing modules and
calling
> functions from various modules that I have written or
otherwise
> obtained. I have grabbed some code from various places
on the web,
> but I don't know where to put the files so that I an
use them, except
> for opening them in the editor and executing them,
which is nice but
> does not let me build real programs.
>
> So, if you are building a program, where do you keep
your sourcecode
> for that progam, and how does Python know how to find
it, and how do
> you "link" modules together to make bigger
programs?
>
> There is a little info on configuration in the Mac
Modules tutorial,
> but it I still have some problems with .py scripts that
seem to
> execute okay but from which I cannot import any
methods.
>
> I am using IDLE w/Python 2.5, which does not have the
"set scripts
> folder" command like MacPython 2.4.
As a Java guy you're surely comfortable with Eclipse, and
PyDev for
Eclipse makes a good Python IDE.
A pure Python IDE would be SPE (see http://pythonide.blogs
pot.com/).
Please dump IDLE.
A Python projects demans no special folder structure, but if
you plan
to deploy your projects to anyone/where else, I'd propose
that you
only keep a small loader script in your main folder and
everything
else in subfolders - that looks cleanest and runs fastest,
because
the called script is never precompiled (the other files
become .pyc
or .pyo) and thus loads slowest.
Of course you can simply import classes and functions from
any Python
file in the same folder.
A Python "package" is just a folder with an
__init__.py and as much
class/module files as you like.
While the folder is on your Python path, you can just import
it like
"import mystuff" or "from mystuff import
myclass, myotherclass".
If you need the same classes for several projects, you could
install
your libs in site-packages (e.g.
/Library/Frameworks/Python.framework/
Versions/Current/lib/python2.5/site-packages).
I guess you know the official tutorial?
http://docs.pytho
n.org/tut/tut.html
Greetlings from Lake Constance!
Hraban
---
http://www.fiee.net
https://www.cacert.org
(I'm an assurer)
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